FileTypeface(Style style, bool sysFont, SkTypeface* familyMember,
const char path[])
: INHERITED(style, sysFont, familyMember) {
SkString fullpath;
if (sysFont) {
GetFullPathForSysFonts(&fullpath, path);
path = fullpath.c_str();
}
fPath.set(path);
}
static bool get_name_and_style(const char path[], SkString* name,
SkTypeface::Style* style, bool isExpected) {
SkString fullpath;
GetFullPathForSysFonts(&fullpath, path);
SkMMAPStream stream(fullpath.c_str());
if (stream.getLength() > 0) {
return find_name_and_style(&stream, name, style);
}
else {
SkFILEStream stream(fullpath.c_str());
if (stream.getLength() > 0) {
return find_name_and_style(&stream, name, style);
}
}
if (isExpected) {
SkDebugf("---- failed to open <%s> as a font\n", fullpath.c_str());
}
return false;
}
static void load_system_fonts() {
// check if we've already be called
if (NULL != gDefaultNormal) {
// printf("---- default font %p\n", gDefaultNormal);
return;
}
SkOSFile::Iter iter(SK_FONT_FILE_PREFIX, ".ttf");
SkString name;
int count = 0;
while (iter.next(&name, false)) {
SkString filename;
GetFullPathForSysFonts(&filename, name.c_str());
bool isFixedWidth;
SkString realname;
SkTypeface::Style style = SkTypeface::kNormal; // avoid uninitialized warning
if (!get_name_and_style(filename.c_str(), &realname, &style, &isFixedWidth)) {
SkDebugf("------ can't load <%s> as a font\n", filename.c_str());
continue;
}
// SkDebugf("font: <%s> %d <%s>\n", realname.c_str(), style, filename.c_str());
FamilyRec* family = find_familyrec(realname.c_str());
if (family && family->fFaces[style]) {
// SkDebugf("---- skipping duplicate typeface %s style %d\n",
// realname.c_str(), style);
continue;
}
// this constructor puts us into the global gFamilyHead llist
FamilyTypeface* tf = SkNEW_ARGS(FileTypeface,
(style,
true, // system-font (cannot delete)
family, // what family to join
filename.c_str(),
isFixedWidth) // filename
);
if (NULL == family) {
add_name(realname.c_str(), tf->getFamily());
}
count += 1;
}
if (0 == count) {
SkNEW(EmptyTypeface);
}
// do this after all fonts are loaded. This is our default font, and it
// acts as a sentinel so we only execute load_system_fonts() once
static const char* gDefaultNames[] = {
"Arial", "Verdana", "Times New Roman", NULL
};
const char** names = gDefaultNames;
while (*names) {
SkTypeface* tf = find_typeface(*names++, SkTypeface::kNormal);
if (tf) {
gDefaultNormal = tf;
break;
}
}
// check if we found *something*
if (NULL == gDefaultNormal) {
if (NULL == gFamilyHead) {
sk_throw();
}
for (int i = 0; i < 4; i++) {
if ((gDefaultNormal = gFamilyHead->fFaces[i]) != NULL) {
break;
}
}
}
if (NULL == gDefaultNormal) {
sk_throw();
}
gFallBackTypeface = gDefaultNormal;
gDefaultFamily = find_family(gDefaultNormal);
// SkDebugf("---- default %p head %p family %p\n", gDefaultNormal, gFamilyHead, gDefaultFamily);
}